Hello everyone!
Stumbled upon this site too late in my first pool ownership experience. Very useful info and glad I found this valuable community! Looking for some help and hope to contribute over time.
TLDR:
New Quartz Plaster mottled/calcium carbonate all over. Acid bath did just OK. PB added ScaleTech and said to wait and brush. Pics at bottom, YouTube video underwater showing issue. Please heeelp!!!
Long story with pertinent details:
We have run into a major concern upon the completion of our plaster job and startup. Coupled with a hot DFW pool market and our builder scrambling to keep up with their sales team, the communication and resolution has been very slow and less than promising.
Major “mottling” or calcium carbonate buildup I suspect - but I’m still learning. Couldn’t figure out how to post a video, so uploaded this video to my YouTube as it shows the issue much better than photos.
- New Pool and spa ~ 29,000 gallons
- Chlorine
- DE filter
- Wet Edge LunaQuartz Madagascar
- “Reputable” pool builder of 25+ years in north Texas
- plastered and filled in same day
8/4/2021
- Plaster complete
- Begin filling via 2 hoses
8/6/2021
- Pool full midday
- City water “green” that week (great
)
- PB on-site, started pumps, added acid?
- PB stated no brushing, they would start 8/9
8/7/2021
- I brushed pool, no PB
8/8/2021
- I brushed pool, no PB
8/9/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/10/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/11/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/12/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/13/2021
- PB on-site morning, “adjusted chemicals”, brushed, added chlorine shock, added chlorine tablets or automatic chlorinator, chlorine shock was visibly tossed into pool and settled at bottom
- I brushed pool and stirred up settled chlorine as soon as noticed it.
- Afternoon I checked PH, 8.2+, chlorine untraceable
- Pool water considerably clearer
- Water sample taken to Leslie Pools
- FC = 0.1
- TC = 0.1
- PH = 8.3
- TA = 108
- CH= 142
- CYA = 5
- Phosphates = 52
- TDS = 300
From there the pool chemicals seemed to get within recommended ranges for Chlorine and pH- but I didn’t have a full test kit and PB wasn’t emailing the Calcium Hardness etc. so I was in the dark and was taking them as the experts.
Brought the discoloration to their attention, we gave it time (several weeks), brushed and brushed and brushed. Finally escalated it and sent video of underwater. They involved WetEdge (plaster mfg), the plaster sub and their GM. Proposed an acid bath. Plaster Co came out with a small pole mounted acid applicator and tested some spots and dissolved some of the white discoloration. The 3 parties agreed on an acid bath, to which I demanded written confirmation of the liability with regard to plaster integrity and warranty (and I got it from PB).
Acid Bath by PB
- added high level of acid to seek 7.0pH and I don’t know what else
- suspended two sump pumps across pool to stir the water and prevent running through pump/heater
- brushed daily, added more acid
- after ~ 7 days, added bicarb and kicked pumps on, removed sump pumps
- after a few days of brushing and backwashing and plugging filter full of some type of “plaster dust”, it cleared up a little so you could see through the water
- pointed out the major trouble areas were still apparently untouched, much of it got better though
- they added ScaleTech Plus and said to wait two weeks, to my knowledge they’ve not added any chlorine at this point
- brushing at this point has resulted in TONS of dust stirring up into the water and making it where you can’t see the end of the brush
- finally got them to come out today and vacuum and do a filter clean to get the pool somewhat usable for a pool party this weekend
- pool is now much clearer and filter is running 24/7 for last day, will keep it this way and keep brushing and backwashing/adding DE
- PB added acid and shock this afternoon, tech said PH was really high and there was no chlorine
- happened to get my big Taylor kit today and took numbers tonight, tested ~ 3-4hrs after PB added chems
FC - 11
CC - 0.2
pH - 8+
TA - 110
CH - 470
SatIndex - 1.0
CYA - 65
78F
So ladies and Gents- this was a long post, but I’m all ears as to solutions/concerns/strategies for pressuring PB differently.
Disclaimer- I’m a total poolcare Noob. I’m wading in to DIY pool care but at this point trying to let the PB try their hand at making things right, lest I give them a reason to point blame at me for the plaster issue. Their contract included a few months of service, when that (and this plaster ordeal) ends- I will not continue service with them.
At completion of plaster

Plaster company ran hoses and began fill, they left one hose near the top. My wife came out and saw this and called the PM, shut off the one hose and went to ACE and got a longer one and put both in deep end and resumed the fill

Pool when full, notable discoloration on tanning ledge

Visible discoloration on bottom, water green. Apparently our city water had an issue with the water the same freakin’ day we chose to fill (no I don’t have the water chemistry at time if fill)


Aerial shot showing discoloration a week or so later after the pool chemistry was balanced and startup completed

Stumbled upon this site too late in my first pool ownership experience. Very useful info and glad I found this valuable community! Looking for some help and hope to contribute over time.
TLDR:
New Quartz Plaster mottled/calcium carbonate all over. Acid bath did just OK. PB added ScaleTech and said to wait and brush. Pics at bottom, YouTube video underwater showing issue. Please heeelp!!!
Long story with pertinent details:
We have run into a major concern upon the completion of our plaster job and startup. Coupled with a hot DFW pool market and our builder scrambling to keep up with their sales team, the communication and resolution has been very slow and less than promising.
Major “mottling” or calcium carbonate buildup I suspect - but I’m still learning. Couldn’t figure out how to post a video, so uploaded this video to my YouTube as it shows the issue much better than photos.
- New Pool and spa ~ 29,000 gallons
- Chlorine
- DE filter
- Wet Edge LunaQuartz Madagascar
- “Reputable” pool builder of 25+ years in north Texas
- plastered and filled in same day
8/4/2021
- Plaster complete
- Begin filling via 2 hoses
8/6/2021
- Pool full midday
- City water “green” that week (great

- PB on-site, started pumps, added acid?
- PB stated no brushing, they would start 8/9
8/7/2021
- I brushed pool, no PB
8/8/2021
- I brushed pool, no PB
8/9/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/10/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/11/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/12/2021
- PB on-site late afternoon, “adjusted chemicals”, brushed, no chlorine
8/13/2021
- PB on-site morning, “adjusted chemicals”, brushed, added chlorine shock, added chlorine tablets or automatic chlorinator, chlorine shock was visibly tossed into pool and settled at bottom
- I brushed pool and stirred up settled chlorine as soon as noticed it.
- Afternoon I checked PH, 8.2+, chlorine untraceable
- Pool water considerably clearer
- Water sample taken to Leslie Pools
- FC = 0.1
- TC = 0.1
- PH = 8.3
- TA = 108
- CH= 142
- CYA = 5
- Phosphates = 52
- TDS = 300
From there the pool chemicals seemed to get within recommended ranges for Chlorine and pH- but I didn’t have a full test kit and PB wasn’t emailing the Calcium Hardness etc. so I was in the dark and was taking them as the experts.
Brought the discoloration to their attention, we gave it time (several weeks), brushed and brushed and brushed. Finally escalated it and sent video of underwater. They involved WetEdge (plaster mfg), the plaster sub and their GM. Proposed an acid bath. Plaster Co came out with a small pole mounted acid applicator and tested some spots and dissolved some of the white discoloration. The 3 parties agreed on an acid bath, to which I demanded written confirmation of the liability with regard to plaster integrity and warranty (and I got it from PB).
Acid Bath by PB
- added high level of acid to seek 7.0pH and I don’t know what else
- suspended two sump pumps across pool to stir the water and prevent running through pump/heater
- brushed daily, added more acid
- after ~ 7 days, added bicarb and kicked pumps on, removed sump pumps
- after a few days of brushing and backwashing and plugging filter full of some type of “plaster dust”, it cleared up a little so you could see through the water
- pointed out the major trouble areas were still apparently untouched, much of it got better though
- they added ScaleTech Plus and said to wait two weeks, to my knowledge they’ve not added any chlorine at this point
- brushing at this point has resulted in TONS of dust stirring up into the water and making it where you can’t see the end of the brush
- finally got them to come out today and vacuum and do a filter clean to get the pool somewhat usable for a pool party this weekend
- pool is now much clearer and filter is running 24/7 for last day, will keep it this way and keep brushing and backwashing/adding DE
- PB added acid and shock this afternoon, tech said PH was really high and there was no chlorine
- happened to get my big Taylor kit today and took numbers tonight, tested ~ 3-4hrs after PB added chems
FC - 11
CC - 0.2
pH - 8+
TA - 110
CH - 470
SatIndex - 1.0
CYA - 65
78F
So ladies and Gents- this was a long post, but I’m all ears as to solutions/concerns/strategies for pressuring PB differently.
Disclaimer- I’m a total poolcare Noob. I’m wading in to DIY pool care but at this point trying to let the PB try their hand at making things right, lest I give them a reason to point blame at me for the plaster issue. Their contract included a few months of service, when that (and this plaster ordeal) ends- I will not continue service with them.
At completion of plaster

Plaster company ran hoses and began fill, they left one hose near the top. My wife came out and saw this and called the PM, shut off the one hose and went to ACE and got a longer one and put both in deep end and resumed the fill

Pool when full, notable discoloration on tanning ledge

Visible discoloration on bottom, water green. Apparently our city water had an issue with the water the same freakin’ day we chose to fill (no I don’t have the water chemistry at time if fill)


Aerial shot showing discoloration a week or so later after the pool chemistry was balanced and startup completed
